Delivery mechanism.



No. 709,!80. Patented Sept. l6, I902.

W. SCOTT. DELIVERY MECHANISM.

(Application filed Apr. 27, 1901.)

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(Application filed Apr. 27, 1901.)

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NITED Starts WALTER SCOTT, OF PLAINFIELD, NEW JERSEY.

DELIVERY MECHANISM.

SPECI ON formingpart of Letters Patent No. 709,180, dated September 16, 1902.

Application filed April 27, 1901. Serial No. 57,738. (No model.)

To all whom, it 'may concern.-

Be itknown that I, WALTER Soo'rT, acltizen of the United States, and a resident of .Plainfield,in the county of Union and State of New Jersey, have invented a certain new and useful Improvement in Delivery Mechanism, of which the following is a specification. It is customary when line printing is done in one or more colors on printing-machines where the sheets are delivered in a flat condition on a delivery-board to alternate slipsheets with the printed sheets in the pile on said delivery-board in order to prevent blurring of the print and the sticking together of the newly-printed sheets. These slip-sheets have usually been laid on the pile by hand after each printed sheet is delivered, which operation interferes with the rapid operation of the printing-machine.

The present invention is intended to facilitate the insertion of the slipsheets between the printed sheets in a convenient manner and at any speed at which the printing-machine can be operated.

The invention maybe used in connectio with stopcylinder presses or two-revolution or other presses in which the sheets are run out from the impression-cylinder and are delivered by what is commonly called a drop-delivery such,for instance, as thatillustrated in Letters Patent of the United States N o. 642,806,dated February 6,1900, or No. 671,494, dated April 9, 1901, or No. 563,967, dated July 14., 1896.

The invention consists in certain arrangements and combinations of devices hereinafter set forth, and more particularly pointed out in the appended claims.

One form of the invention is illustrated in the accompanying drawings, forming part of this specification, in which Figure 1 is a side elevation, with parts omitted, of a flat-bed printing-press in which the invention is embodied. Fig. 2 is a plan View of the same, parts being omitted. Fig. 3 is a diagrammatic view from the side, showing said embodiment of the invention disconnected from the framework. Fig. 4 is a side View of a modified arrangement for associating slips and printed sheets.

The reference-letter A designates a framework in which the moving parts are mounted in m anner appropriate to each.

C is an impression-cylinder with which the form-lithographic, letter-press, or other mounted on the fiat bed as usual coacts in giving the impressions. The sheets may be fed to the cylinder Gin any suitable manner, as by hand from a feed-board F, suitably-operated gages G being employed, if desired or requisite. The sheets may be held in place on the cylinder 0 in any known or desired manner (not shown) during the first revolution of the cylinderand may be directed therefrom upon guides a during the second revolution of the cylinder v by any known means. (Not shown.) tween forwarding-tapes b by the guides or and are carried forward by said tapes to a dropdelivery mechanism with their newly-printed sides uppermost and are so delivered. The tapes I) are operated by pulleys or rollers c, which are journaled in the frame A and which are driven in any suitable manner, as from or by the cylinder (3. In case the cylinder 0 be a stop-cylinder the tapes I) willof course when driven therefrom stop with the cylinder. The sheets are delivered by the tapes I) and fixed guides 61 e to the drop-delivery mechanism and are delivered flatupon a delivery-board J by said mechanism. The drop-delivery mechanism illustrated in the drawings will now be described. A carriage D is arranged to be moved to and fro upon guides on the framework A in any suitable manner and by suitable meansas, for example, in the aforesaid Letters Patent numbered 642,806 and 671,494. The carriage D is provided with bearings for a spring-roller f, to which one end of a web g or its equivalent ribbons is made fast, the other end thereof being made fast to a bar it on or forming part of the framework A. The guides d e extend above and over the bar 71 sufficiently far to guide the heads of the printed sheets onto a gripper-bar t', which is mounted upon or forms part of the carriage D. Movable grippers j, which are fast to a rockshaft 7c, journaled on the carriage D, are arranged to coact with the upper side of the bar '2; to grip the sheets and to hold them during the outward strokes of the carriage, during which strokes the fabric g unwinds from the roller], whose spring is The sheets are directed be simultaneously wound up and forms a support for the sheets being drawn out over it. When the carriage D nears or reaches the end of its outward strokes, the grippers j are opened or raised by suitable means, as by the means hereinafter described, and remain open during the return or delivery strokes of the carriage D. As shown in the drawings, the shaft in is provided with a springrod Z, by means of which the shaft is held in one or the other of the limits of its motion, as with the grippers j bearing on the bart' or with the grippers j open or raised-that is, according as the power of the spring-rodl is exerted over or under the line of centers in the manner shown in my application for Letters Patent of the United States, filed August 13, 1898, Serial No. 688,531, new Letters Patent No. 689,919, dated December 31, 1901. The grippersj at or near the end of the outward strokes of the carriage D are opened to release the sheets by suitable means, such as a rocking arm m, having a cam n thereon for coaction with a roller on an arm 0, projecting from the shaft is. The arm at is connected with a like arm 1) by a rod g, which is pivotally connected with both arms. The

. arms mp are fulcrumed on the frame A. as

indicated, and the rod q is connected with a bell-lever r, also fulcrumed on frame A. The leverr is rocked at the proper times by means of a cam s on a rotating shaft t, deriving motion from some part of the printing-machine, and a rod it, which connects with the lever and is moved endwise by the cam The cam n is moved up and down by the arm m, and thereby caused to depress the roller on the arm m to open the grippersj, or other means may be employed to operate the shaft at the proper time for opening the grippers. The grippersj may he closed in suitable manner by means of an arm n on the shaft 70, which strikes a properly-placed lug on the frame A as the carriage reaches the limit of the return strokes thereof, or a movable cam may be used for this purpose. Slip-sheets are fed by hand to the grippers jt' from a feedboard w,which is placed above the tapes I) and over the cylinder 0. This feed-board is made in two sections, which are hinged together transversely of the machine in order that the upper section may be turned up and onto the lower section in order that free access may be had to the cylinder 0 and parts adjacent thereto. A set of gages .70 may be used for the slip-sheets fed from the board to. By preference the gages w are carried by a rock-shaft 3 to which the arm 2) is also made fast, whereby the cam n and the gages as may be operated by the one cam s, which, it is remarked, may make one turn for each impression. The guides d are shown as being connected with the under side of the board to by a dovetail joint. which may allow them to be adjusted transversely of the machine, and guides e are shown as being mounted upon a shaft or rod .2, which cittends transversely of the machine and along which the guides e may also be adjusted. The cylinder 0 may have a toothed segment G'X thereon, with which a rocking toothed bar may coact in starting and stopping the cylinder in a known manner, such as illustrated in my Letters Patent of the United States dated October 3, 1893, and numbered 505,961. This starting and stopping mechanism is used only when the cylinder C is a stop-cylinder, as will be understood.

The operation of the abovedescribed mech: anism is as follows: The sheets to be printed are fed to the cylinder 0 and receive impressions during the first revolutions thereof, and during the second revolutions thereof are directed upon the guides at at the front thereof and thence pass on to the tapes I), which carry the sheets forward to a drop-delivery mechanism, either that shown or such as known in the art. The carriage D reaches its receiving position in time to receive the heads of the advancing sheets upon its gripper-bar 2', the grippers j being raised. It may aid in understanding the operation, however, to take the parts at the time the'carriage D has reached the end of its travel outward to begin the delivery of a sheet, at which moment the gages a; may be and preferably are dropped, while the grippers j are raised to release the sheets lying upon the fabric g. The grippers 7 remain open or raised until dropped to grip a new printed sheet and new slip-sheet at the receiving end of the path of the carriage D. As soon as the gages a; are down an attendantfeeds the slip-sheet against them, the carriage D being at the end of its outward motion and being just reversing its motion. In case a stop-cylinder O is used the heads of the printed sheets and the bar '1: of the returning carriage D reach the receiving-point at the same moment the cylinder 0 and tapes 6 come to rest, the grippers j being open, and the heads of the printed sheets pass on to said bar 1'. The gages 0c are lifted before the carriage D begins to move outward again and the grippersj are dropped down onto the sheets upon the bar t', or the slip-sheets may be fed to the drop-delivery mechanism and be laid upon the tops of the printed sheets by the means shown in Fig. 4, wherein a suitably-driven roller K lies just below or flush with the top surface of the board w, which is transversely cut away for the purpose, so as not of itself to feed forward the slip-sheets, and a drop-roller L, which is automatically dropped onto and raised from said roller K, whereby the slipsheets may be fed forward onto the tops of the printed sheets without themselves being gripped by the grippers 1'- j. As the carriage D nears the end of its outward strokes the arm 0 is operated by the cam 01 and the grippers j are opened and the heads of the sheets are released, the gages a: being dropped simultaneously. During the return movementof the carriage D the fabric g is wound upon the roller fand the sheets are dropped onto the receiving-board J in a known manner. In case the cylinder 0 be a stopcylinder the tapes I) may notstop simultaneously therewith, even though driven therefrom, for the mechanism shown and claimed in my application for LettersPatent of the United States, filed June 15, 1898, Serial No. 683,520,now Letters Patent No. 675,499,dated June 4, 1901, may be used to continue the motion of the tapes b until the sheets are beyond the control thereof, although the cylinder 0 has stopped. Also the roller f need not be a spring-roller, for it may be driven positivelyin each direction, as in my Letters Patent of the United States dated February 6,1900, and numbered 642,805, without evading the present invention. Other known forms of drop-delivery mechanism may be used in place of that herein shown and above described without departing from this invention. It is understood, of course, that the cylinder 0 when a stop-cylinder is at rest during the return strokes of the typebed on which the form is placed; also, that the tapes I) may be driven from the cylinder 0, and that they may be otherwise driven; also, that the grippers 71 j when the tapes (9 stop with the cylinder 0 may draw the sheets from between the tapes, and that these tapes may be separated momentarily at this time to facilitate such drawing out of the sheets, (means for so separating said tapes is shown and described in a prior application of mine,) and that the carriage D may be driven to and fro by any suitable means, as in prior applicatious for and in Letters Patent of mine.

What is claimed is- 1. In a drop-delivery mechanism, the combination of a to-and-fro-moving carriage, an

extensible collapsible sheet-supporter oper ated thereby, a feed-board fromwhich slipsheets may be fed, and means underneath said board for feeding printed sheets onto said supporter underneath the slip-sheets, substantially as described.

2. In a drop-delivery mechanism, the combination of a to-and-firo-moving carriage, upper and lowergripper members thereon, a feed-board at the receiving end of said delivery mechanism from which slipsheets may be fed to said grippers, and means underneath said board for feeding printed sheets to said grippers underneath the slip-sheets, whereby slip and printed sheets are gripped together at their heads and are associated as said grippers draw themout, substantially as described.

3. In a drop-delivery mechanism, the combination of a to-and-fro-moving carriage,fixed.

lower and movable upper gripper members thereon, a feed-board at the receiving end of said mechanism from which slip-sheets may be fed to said grippers, gages for said slipextensible collapsible sheet-supporter operated by said carriage a feed-board. from which slip-sheets may be fed, and means underneath said board for feeding sheets onto said supporter and to said grippers underneath the slip-sheets, substantially as described.

5. In a drop-delivery mechanism, the combination of a to-and-fro-movingcarriage ,fixed lower and movable upper grippers thereon, an extensible collapsible sheet-supporter, a feed-board for slip-sheets, and means underneath said board for feeding printed sheets onto said supporter and to said grippers.

6. The combination with an impressioncylinder delivering sheets at its front, of a feed-board from which slip-sheets are fed onto the printed sheets, the slip and the printed sheets moving in the same direction, and the slip-sheets subsiding upon the printed sheets as the latter are moved outward, and a delivery apparatus adapted to deliver associated sheets together on the receiving-board.

Z. In a printing-press, the combination of an impression-cylinder delivering sheets at its front, a feed-board placed in front of said cylinder above the path of the printed sheets and from which slip-sheets maybe fed to the sheet-path, both printed and slip sheets moving in the same direction, and the slip-sheets subsiding upon the printed sheets as the latter are moved outward, and a reciprocating delivery apparatus adapted to lay associated sheets on the receiving-board.

8. In a printing-press, the combination of an impression-cylinder delivering sheets at its upper front side, a feed-board placed above the path of the printed sheets, and sheet-supporting fingers at the lower end of said board for preventing the slip-sheets from resting on the printed sheets until the front ends of both meet at a common point.

9. In a printing-press, the combination of an impression-cylinder delivering sheets at its upper front side, a feed-board placed above the path of the printed sheets, sheet-supports at the lower end of said board for preventing the slip -sheet from resting on the printed sheet until both meet at a common point, and a reciprocating delivery mechanism adapted to deliver both sheets simultaneously.

10. In a printing-press, the combination of an impression-cylinder delivering sheets at its upper front side, a feed-board placed above the path of the printed sheets and from which slip-sheets may be fed, feed-gages to which the slip-sheets are fed so as to deliver them at the same point at which the printed sheets are delivered to the delivery mechanism, and said delivery mechanism for delivering said sheets flat on a receiving-board.

11. In a printing-press, the combination of an impression-cylinder receiving sheets at its upper side and delivering them at its front side into a sheet-path, a feed-board arranged above said path and from which slip-sheets may be fed in register with the front end of and associate with the printed sheets, and a reciprocating delivery mechanism adapted to deliver the associated sheets on a receiving-board.

12. In a stop-cylinder printing-press, the combination of an impression-cylinder delivering the printed sheets in front thereof, a feed-board from which slip-sheets may be fed to a point where the front edges of the printed sheets stop, said sheets being associated at such point, and a reciprocating delivery apparatus adapted to seize the associated sheets and draw them over the receiving-table.

13. In a stop-cylinder printing-press, the

combination of an impression-cylinder delivering the printed sheets at its front side, a feed-board from which slip-sheets may be fed to a point Where the front edges of the printed sheets stop, the slip and the printed sheets moving in the same direction, and the slipsheets subsiding upon the printed sheets as the latter are moved outward, and a delivery mechanism provided with grippers for seizing the associated slip and printed sheets and drawing them out over a receiving-board.

14. In a stop-cylinder printing-press, the combination with an impression-cylinder delivering the printed sheets at its front, a feedboard from which slip-sheets may be fed to a point where the front edges of the printed sheets stop, said sheets being associated at such point, and a reciprocating delivery mechanism, having a sheet-support, of a receiving table or board.

15. In a stop-cylinder printing-press, the combination of an impression-cylinder delivering the printed sheets at its front, a feedboard from which slip-sheets may be fed to a point where the front edges of the printed sheets stop, said sheets being associated at such point, a reciprocating delivery mechanism provided With grippers and with a sheetsupport, said grippers seizing the heads of the associated sheets, and a receiving table or board.

16. In a stop-cylinder printing-press, the combination of an impression-cylinder delivering the printed sheets into a path in front thereof, the sheet stopping simultaneously with the cylinder, a feed-board from which slip-sheets may be fed to overlie the printed sheets from the front edges thereof, and a reciprocating delivery mechanism adapted to seize both sheets while in or near a state of rest and to deliver them onto a receiving board or table.

17. The combination of a reciprocating delivery having grippers which close to seize sheets and open to release them, a feed-board from which sheets may be fed to gages, the gages, and cam-operated means which simultaneously lower the gages and open said grippers.

Signed at New York, in the county of New York and State of New York, this 25th day of April, A. D. 1901.

WALTER SCOTT.

Witnesses:

EDWARD W. NORRIS, R. W. BARKLEY. 

